Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a black silver ornament and a method for making the same, which aims to solve the problem that the prior art is difficult to make black silver ornaments with high saturation, pure color and difficult fading.
The technical scheme of the invention is as follows:
a preparation method of black silver ornaments comprises the following steps:
placing the silver ornament in sulfur soap solution and carrying out heat treatment for preset time;
taking out the silver ornament subjected to heat treatment and coating water-based black ink on the surface of the silver ornament;
and (3) continuously coating turpentine on the surface of the silver ornament coated with the water-based black ink, and then putting the silver ornament on fire for drying treatment to obtain black silver.
The preparation method of the black silver ornament comprises the following steps of placing the silver ornament in sulfur soap solution and carrying out heat treatment for a preset time, wherein the heat treatment temperature is 80-150 ℃; the predetermined time is 5-10 min.
The preparation method of the black silver ornament comprises a silver earring, a silver necklace, a silver ring, a silver pendant and a silver utensil.
The black silver ornament is prepared by the preparation method of the black silver ornament.
Has the advantages that: compared with the prior art, the method has the advantages that the silver ornament surface is quickly vulcanized into the silver sulfide with dark gray color by using the sulfur soap liquid, the water-based black ink is coated on the silver ornament surface, the turpentine is coated on the silver ornament surface, the deep dyeing is carried out to achieve the effects of color fixation and surface sealing, the silver sulfide has better lipophilicity and can be better fused with the turpentine, finally, the soft flame is used for burning the redundant oil and water on the silver ornament surface, the effect of carbonizing the turpentine is achieved, the effect of forming a protective film on the surface is achieved while the color is kept, and finally, the prepared black silver ornament has the effects of pure black color, high color saturation and difficult fading.
Detailed Description
The present invention provides a black silver ornament and a method for manufacturing the same, and the present invention is further described in detail below in order to make the objects, technical solutions, and effects of the present invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a flowchart illustrating a method for manufacturing a black silver ornament according to a preferred embodiment of the present invention, as shown in the figure, the method includes the following steps:
s10, placing the silver ornament in the sulfur soap solution and carrying out heat treatment for preset time;
s20, taking out the silver ornament subjected to heat treatment and coating water-based black ink on the surface of the silver ornament;
and S30, continuously coating turpentine on the surface of the silver ornament coated with the water-based black ink, and then putting the silver ornament on fire for drying treatment to obtain black silver.
In the embodiment, the silver ornament surface is quickly vulcanized into dark gray silver sulfide by sulfur soap liquid, a small amount of water-based black ink is dipped by a small brush and coated on the silver ornament surface, turpentine is coated on the silver ornament surface, deep dyeing is carried out to achieve the effects of color fixation and surface sealing, and finally, redundant oil and water on the surface are burnt by soft flame to dry, the effect of carbonizing the turpentine is achieved, so that the effect of forming a protective film on the surface is achieved while the color is kept.
In this embodiment, if the silver ornament is coated with the aqueous black ink without first performing the vulcanization treatment, the aqueous black ink cannot completely cover the surface of the silver ornament, so that the aqueous black ink is not only non-uniformly colored but also cannot be blended with turpentine, and the aqueous black ink directly fades in the final drying treatment step, so that the black cannot be fixed on the surface of the silver ornament. In this embodiment, experiments show that after the silver ornament is subjected to a vulcanization treatment by using a sulfur soap solution, a layer of silver sulfide is generated on the surface of the silver ornament, and the surface contact angle of the silver sulfide is larger than that of pure silver or silver oxide, which indicates that the hydrophilicity of the silver sulfide is reduced, and the hydrophobicity of the silver sulfide is increased, so that the affinity property of the silver ornament to an oily material is improved. The low hydrophilicity of the silver sulfide means that the lipophilicity is high, and the better lipophilicity can be that the water-based black ink covered on the surface of the silver sulfide is easier to dissolve in turpentine oil so as to achieve the better color fixing effect.
In this example, in order to verify the surface energy changes of the pure silver flakes, the silver sulfide flakes and the silver oxide flakes of the same volume, the contact angle test of the three materials was performed, and as shown in fig. 2-4, the contact angle of the pure silver was 43.063 degrees, the contact angle of the silver oxide treated by the ageing liquid was 34.826 degrees, and the contact angle of the silver sulfide was 55.981 degrees. The results show that the surface contact angle of silver sulfide is increased, and that hydrophilicity is decreased and hydrophobicity is increased, thereby improving the affinity to the oily material.
In this embodiment, the turpentine is used as a dyeing solvent material commonly used in painting, and is easy to mix and easily available. The turpentine is coated on the vulcanized silver ornament surface, the lipophilicity of the silver ornament surface is beneficial to dissolving the water-based black ink coated on the silver ornament surface in the turpentine, so that the water-based black ink is fixed on the silver ornament surface, and finally, the black color is adhered to the silver ornament surface when the silver ornament surface is subjected to drying treatment in soft flame. Generally, the paint directly covered on the metal surface can not resist high temperature, so the color can fade after being baked on flame, but the silver ornament processed by the embodiment not only keeps the texture of the metal, but also has high temperature resistance and can not fade.
In some embodiments, the step of placing the silver ornament in the sulphur soap solution and performing heat treatment for a predetermined time, the temperature of the heat treatment is 80-150 ℃; the predetermined time is 5-10 min. Specifically, in this example, the silver ornament is placed in a sulfur soap solution at 80-150 ℃ and boiled for 5-10 minutes, so that the surface of the silver ornament is fully vulcanized, and the silver ornament with a layer of silver sulfide covering the surface is prepared, thereby laying a basic ground color for coloring the silver ornament.
In some embodiments, turpentine is continuously applied to the silver ornament surface coated with the aqueous black ink, and then the silver ornament surface is put on fire for drying treatment to obtain a black silver color. In this embodiment, the water-based black ink and turpentine oil coated on the surface of the silver ornament are dried by soft flame, and the turpentine oil is carbonized, so that the color of the turpentine oil is kept, and a protective film is formed on the surface of the turpentine oil, so that the black silver ornament which is pure in black, high in color saturation and not easy to fade is prepared.
In the embodiment, the burning-drying treatment time on the flame is different for silver ornament products with different volume sizes. For example, taking silver rings as an example, the silver rings after the treatment can be baked on soft flame for 10-30s to dry the excessive turpentine and the water-based black ink on the surfaces of the silver rings, so as to achieve the effect of carbonizing the turpentine.
In some embodiments, the silver jewelry includes, but is not limited to, a silver earring, a silver necklace, a silver ring, a silver pendant, and a silver dish.
In some embodiments, the black silver ornament is prepared by the preparation method of the black silver ornament.
The following is a further explanation of the preparation method and the performance of the black silver ornament according to the present invention by means of specific examples:
example 1
A preparation method of black silver ornaments comprises the following steps:
1. putting the silver ornaments into sulfur soap liquid at 100 ℃ and boiling for 8 minutes;
2. then 1g of water-based black ink is coated on the surface of the boiled silver ornament;
3. then 2ml of turpentine is coated on the surface of the silver ornament; and then putting the silver ornament on soft flame to be dried for 15s, thus obtaining the black silver ornament.
The surface color of the black silver ornament shown in fig. 5 prepared in this example was tested to find that the surface color of the black silver ornament was pure black (RGB 101312), and the black silver ornament prepared in this example did not fade within 5 years, and still maintained the color as originally finished.
In conclusion, the silver ornament surface is quickly vulcanized into the silver sulfide with dark gray by using the sulfur soap solution, the water-based black ink is coated on the silver ornament surface, the turpentine is coated on the silver ornament surface, the deep dyeing is carried out to achieve the effects of color fixation and surface sealing, the better lipophilicity of the silver sulfide can be better blended with the turpentine, and finally the redundant oil and water on the silver ornament surface are burnt out by using soft flame to achieve the effect of carbonizing the turpentine, so that the effect of forming a protective film on the surface is achieved while the color of the turpentine is kept, and finally the prepared black silver ornament has the effects of pure black, high color saturation and difficult fading.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.